Google says Meta and search engine company Yandex used Android capabilities "in unintended ways that blatantly violate our security and privacy principles".
They used a protocol called WebRTC that allows for establishing direct P2P connections to establish a connection to the Facebook app running on your phone. The FB app knew your identity so it was able to link your in browser actions with your FB identity.
They used a protocol called WebRTC that allows for establishing direct P2P connections to establish a connection to the Facebook app running on your phone. The FB app knew your identity so it was able to link your in browser actions with your FB identity.